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    <title>Document</title>
    <script>
        //声明数组【1-10】
        var arr=[];
        for(var i=0;i<10;i++){
            //arr = i;不能直接给数组赋值，否则以前元素都没有了
            arr[i] = i+1;
        }
        alert(arr);
    </script>
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